In Mesh::UniformRefinement, use the 'meshgen' field which is global instead of the local GeometryList class.
In Mesh::UniformRefinement, use the 'meshgen' field which
is global instead of the local GeometryList class.

mfem/mfem,mfem/mfem,mfem/mfem,mfem/mfem,mfem/mfem